Caligula - I think the issue is that the domestic violence and evidence from his wife and daughters as to his violence against them, beatings with sticks and punching (child) was ruled inadmissable by all of the trial judges.
Therefore the jury never got to hear this 'evidence'.
It was not admissable as it had apparently not been declared at the time it happened (hmmmm)!
I'm not saying this makes the man guilty - just that there was some 'evidence' that the jury did not have access to.
I think I would probably read something into the fact that his wife is pretty sure that he did do it, it would seem. Not many wives would reach that view of their husbands in such circumstances without foundation, I think.
The cost of the trials so far have exceeded £10m.
It has no doubt helped him this time that he has an extremely wealthy wife/gf who has funded his legal team!